"Dare." Ty chuckles while staring at Dustin, who still kept his front facing the window. The older teen was unprepared for Ty's answer, having to take a solid minute to say his dare. Ty sat there on the bed and patiently waited, thinking of dirty thoughts in the meantime. Finally managing to get his erection down halfway, Dustin turns around and sits at his windowsill.
"I dare you to get naked." Dustin said, staring at his foster brother with a smirk on his face.
"Okay that's too easy." Ty casually shrugs, standing up from the bed and strips off his shirt first, followed by his pants and underwear last. His cock was flaccid for the moment, making the older teen laugh at how small it is.
"Hahahaha! Oh man that's so tiny!" Dustin laughs as he rubs his eyes, feeling more confident about his more impressive sized dick. The foster teen didn't felt embarrassed at one bit, knowing full well he had the power to kill his foster brother in just a snap. But he didn't, and let him had his fun for now. "Mine is so much bigger than your shrimp dick."
"Show me." Ty chuckles and places his hands on his hips, making his foster brother start to stammer.
"Yeah you would like that, you faggot." Dustin spat back, uncomfortably squirming back against the window to control his erection from coming back. Ty chuckles and brushes off the worthless insult.
"Okay okay. Truth or dare then, Dustin."
"Truth, cause I know you'll dare me to show you my cock, faggot."
"Do you want to see me touch myself, Dustin?" Ty's hand slides down to his crotch, fingers lightly rubbing his pecker to make it twitch.
"N-no way you homo!" Dustin put one leg over the other in a failed attempt to cover his growing erection, his cheeks were red from the deep blushing of his embarrassment. "Stop touching yourself!"
"I can see the bulge in your shorts, Dustin." Ty almost moaned with his speech, one hand getting his penis erect while the other fondles his ball-sack. "If it's not then you're right, your cock is bigger than mine..but if it's erect.."
"Fine I'll prove it!" Dustin yells and stands up, pulling his shorts down to have his fully erect eight inch cock spring out. "See! It's not hard!" The younger teen chuckles at Dustin, making him look down and blush real red all over. "O-oh crap.."
"You're right, Dustin ." Ty begins stroking his six inch cock, moving his other hand to rub a nipple. "Yours is bigger than mine. I like how you shaved your pubes clean too. I'm a late bloomer so I don't have hair down here yet.." The older teen couldn't hold back for much longer, and started stroking his length. "It's my turn now, Dustin."
"F-fine.." Dustin grits his teeth, feeling so turned on that he was masturbating with his foster brother, but so disgusted by it at the same time. "T-truth or d-dare, homo.."